/* Reset i podstawowe style */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #202122;
    background: #FFFFFF;
}

a {
    color: #3366CC;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

a.disabled {
    color: #999;
    cursor: not-allowed;
}

/* Layout */
.wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.content-wrapper {
    display: flex;
    gap: 20px;
    margin-top: 20px;
}

/* Header */
.main-header {
    padding: 20px 0;
    border-bottom: 1px solid #ddd;
}

.logo-container {
    text-align: center;
    margin-bottom: 20px;
}

.logo-container a {
    display: inline-block;
}

.logo {
    max-width: 250px;
    height: auto;
    display: block;
}

.search-bar {
    max-width: 600px;
    margin: 20px auto;
    display: flex;
    gap: 10px;
}

.search-bar input {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.search-bar button {
    padding: 8px 16px;
    background: #3366CC;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: not-allowed;
}

.main-nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* Sidebar */
.sidebar-left {
    width: 250px;
    flex-shrink: 0;
}

.side-nav h3 {
    margin: 20px 0 10px;
    padding-bottom: 5px;
    border-bottom: 1px solid #ddd;
}

.side-nav ul {
    list-style: none;
    margin-bottom: 20px;
}

.side-nav li {
    margin: 5px 0;
}

/* Main Content */
.main-content {
    flex: 1;
    min-width: 0;
}

.welcome-section {
    background: #f8f9fa;
    padding: 20px;
    margin-bottom: 30px;
    border-radius: 1em;
    border: 1px solid #202122;
}

.welcome-messages p {
    margin: 10px 0;
    font-size: 1.1em;
}

.about-section {
    margin-bottom: 40px;
}

.about-section h2 {
    margin-bottom: 20px;
}

.about-section h3 {
    margin-top: 20px;
    margin-bottom: 8px;
}

.about-section ul {
    margin: 20px 0;
    padding-left: 20px;
}

.example-article {
    background: #fff;
    padding: 20px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.example-article h2 {
    margin-bottom: 20px;
}

.example-article h3 {
    margin: 20px 0 10px;
}

/* Footer */
.main-footer {
    margin-top: 40px;
    padding: 20px 0;
    border-top: 1px solid #ddd;
    text-align: center;
}

.footer-nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 10px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .content-wrapper {
        flex-direction: column;
    }

    .sidebar-left {
        width: 100%;
        order: 2;
    }

    .main-content {
        order: 1;
    }

    .main-nav ul {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .wrapper {
        padding: 0 10px;
    }

    .logo-placeholder {
        width: 200px;
        height: 80px;
    }

    .search-bar {
        flex-direction: column;
    }

    .search-bar button {
        width: 100%;
    }
}